AirHint found the following cheapest return flights from Bangkok (DMK) to Ulaanbaatar (UBN) in November 2025 (see full year).

Return flights

07 Nov - 14 Nov	Thai Lion Air
05 Nov - 12 Nov	Thai AirAsia
13 Nov - 20 Nov	Thai AirAsia
12 Nov - 19 Nov	Thai AirAsia
06 Nov - 13 Nov	Thai Lion Air
11 Nov - 18 Nov	Thai AirAsia X
08 Nov - 15 Nov	Thai Lion Air
04 Nov - 11 Nov	Thai AirAsia X
09 Nov - 16 Nov	Thai AirAsia X
10 Nov - 17 Nov	Thai AirAsia X

Also check the deals for one-way flights from Bangkok to Ulaanbaatar in November.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Bangkok to Ulaanbaatar in November from $635

Return flights